Alert archive / Iowa / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 2, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 30, 2003, 9:49 AM CDT for Linn County, Iowa. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2003, 9:49 AM CDT (14:49 UTC)
- Expired
- Apr 30, 2003, 10:15 AM CDT
- In force
- 26 min
- Issued by
- NWS Quad Cities, IA
- Area
- Counties, with a storm outline in the text
County Linn County, IA
The radar
The Quad Cities radar (KDVN), 105 km from the middle of the area, began a volume at 14:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 2.8 hours before the alert went out and 111 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 849 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 478 m²/s²
- 0-3 km storm-relative helicity
- 567 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
169 WUUS53 KDVN 301449 SVRDVN IAC113-301515- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 948 AM CDT WED APR 30 2003 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LINN COUNTY IN EAST CENTRAL IOWA * UNTIL 1015 AM CDT * AT 943 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS 3 MILES NORTHWEST OF PALO...OR 11 MILES SOUTHEAST OF VINTON...MOVING EAST AT 45 MPH. * THE SEVERE THUNDERSTORM IS EXPECTED TO BE NEAR... MIDWAY BY 950 AM CDT. ROBINS BY 955 AM CDT. ALBURNETT BY 1000 AM CDT. WHITTIER BY 1005 AM CDT. THIS SEVERE THUNDERSTORM IS CAPABLE OF WINDS IN EXCESS OF 55 MPH AND PEA SIZED HAIL. TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES. INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. STAY AWAY FROM ISOLATED HIGH OBJECTS AND MOVE INDOORS IF POSSIBLE. IF INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. LAT...LON 4224 9183 4196 9182 4192 9138 4229 9138 $$ WOLF
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 10:18 AM CDT | Severe Thunderstorm Warning | DVN | Jones | 42 min |
| Apr 30, 1:09 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 36 min |
| Apr 30, 1:11 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 34 min |
| Apr 30, 1:28 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 47 min |
| Apr 30, 5:02 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson | 43 min |
| Apr 30, 5:09 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Washington | 51 min |
| Apr 30, 5:27 PM CDT | Tornado Warning | DVN | Henry, Louisa | 33 min |
| Apr 30, 5:46 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson | 29 min |
| Apr 30, 5:56 PM CDT | Tornado Warning | DVN | Louisa | 64 min |
| Apr 30, 6:01 PM CDT | Tornado Warning | DVN | Louisa | 29 min |
| Apr 30, 6:10 PM CDT | Tornado Warning | DVN | Henry | 35 min |
| Apr 30, 6:19 PM CDT | Tornado Warning | DVN | Des Moines | 56 min |
| Apr 30, 6:31 PM CDT | Tornado Warning | DVN | Louisa | 44 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2003Every severe thunderstorm warning in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.